Sewing-machine.



C. H. WILKS.

SEWING MACHINE.

APPLICATION P ILED sPT.22. 1915.

Patented. July 17, 1917'.-

Wim/F8858 JCLAHE/V A FOR/VHS CLARENCE H. WILKES, 0E G'LovERsvILLE, NEW YORK, AssreNoR To FREDERICK KLEIN, TRUSTEE.

SEW'ING-MACHINE.

Specii'cation of Letters Patent.

Patented July 1"?, 1917.

Application filed September 22, 1915. Serial No. 51,925.

useful Improvements in Sewing-Machines,

of which the following is a specification.

My invention relates more particularly to sewing machines employingl a tubular spindle for supporting the wor r. This type of machine is usually employed in the manu facture of gloves the spindle being adapted to enterthe fingers of the glove while the same Vis being sewed. In this type of machine the working surface of the end of the spindle is of necessity very small in area and for this reason it is necessary to provide a special means for feeding the work during the sewing operation.

lThe object of the present invention is to provide a suitable feeding mechanism adapted to resiliently press upon the upper face of the work and intermittently feed the same forward when the needle is withdrawn. In adapting my device to this type of machine the presser-foot is made smaller and preferably rests upon the work at one side of the needle while the feed wheel, pressing upon thegoods on the opposite side of the needle, will act as presser-foot and feed the work as required. rlhe pressenfoot is mounted upon a rod in the 4usual manner and my feed device is also preferably mounted upon another rod slidable in the. head of the machine and means are provided for lifting both the presser-foot and the feed wheel from the work when it is desired to free the same for adjustment.

One form of mydevice is shown in the accompanying drawings in which Figure 1 is a side elevatiompartially in section of a glove sewing machine; Fig. 2 is an end elevation of the sewing machine head and spindle; Fig. 3 is a cross section of my feed mechanism substantially att-3 of Fig. f1; Fig. l is a vertical cross 'section of my device separate from the machine; Fig. 5 is the top cover of the casing.

Referring to the ydrawings 1 represents the table. or bed of the machine having mounted thereon the tubular spindle 2 in the end of which the needle reciprocates, there being a hook reciprocating up and d own 1n the tubularspindle to assist in forming the lock stitch substantially as 'shown and, yden scribed in my Patent No. 1,049,430 of J anuary 7, 1913; the needleand my improved mechanism, associated therewith, are supported in the head 3 in the usual or any preferred manner and the various mechanisms are adapted to be operated by cams or other suitable devices in the usual or any preferred manner, these latter parts not beinglshown. The needle rod 4 is reeiprocated in the head 3 in the usual manner, the needle 5 being adapted to enter the upper end of the spindle 2 and carry the loop of thread into the spindle where it may be grasped by the reciprocating thread hook (not shown) and looped over the shuttle to form the lock stitch substantially as described in the above patent.y

The work A is supported upon the end of the spindle and a. presser-foot 6 is adapted to press on the work at one side of the needie substantially as indicated in Fig. 1 of the drawings. It will be noted that this presser-foot is extremely narrow and adapted to press upon the work at one side only of the needle, a spring being provided on the presser-foot rod in the usual or any preferred manner to resiliently hold the presserfoot in contact with the work. On the opposite side of the needle from the presser-foot 6 I preferably mount a feed wheel 7, provided w'vith teeth adapted to engage the upper surface of the work so as to feed the same across the top of the spindle support 2 during sewing operation. The feed wheel 2 is preferably slightly conical in shape so that, while the faee rests flat on the work the wheel is at an angle to the needle as indicated in Figs. 1 and l of the drawings, thus permitting the working face of the wheel to be brought close to 'the needle. A stud shaft 8 is connected with the wheel 7 and pivotally mounted in the lower end of the casing 9, the vshaft S carrying on its opposite end a bevel gear 10 adapted to mesh with another bevel gear 11 connected with a shaft 12 preferably supported vertically in the casing 9 asindicated in Fig, 4. rlhe upper end of the shaft '12 is provided with 'a ratchet wheel 13 in which a reciprocating pawl 111 is adapted to operate to turn the ratchet in one direction and thereby, through the intermediate gearing, turn the feed wheel 7 to feed the lwork in the manner described, Any suitable connection between the drivmechanism nf the machine andthe pawl` iio feed for theratchet 13 may be made but preferably I employ a bolt pawl 14 which is adaptedto be spring pressed toward the yratchet 13 by the spring 15, the pawl being held in position in a slide block 16, the lat ter being adapted to reciprocate in a slot 17 in the upper end of the casing 9 substantially as indicated in Fig. 3 of thedrawings. The slide block 16 is preferably provided with a vertically disposed hole in which the rod or stub 18 loosely fits, the stud being reciprocated in a direction parallel with the slot 17 in any suitable or preferred manner to reciprocate the slide block 16.

The top plate 9a is adapted to hold `the slide block 16 and the ratchet in place in the casing 9.

The casing 9 is preferably provided with anY extending ear or lug 19 which, in the present instance, is secured to a vertically reciprocating` rod 2O slidably mounted in the head 2 substantially as indicated in Fig. 2 of the drawings. A suitable spring is provided for resiliently holding the rod and the associated casing 9 and .feed wheel 7 in its Ylowermost position with the feed wheelV pressing against the work upon the spindle 2. It will be understood that by Vthus mounting the feed wheel it may berlifted out of contact with the work when it is required to adjust the same, the feed wheel in this f instance acting as a presser-foot while adapted to be intermittently turned to feed the workforward as required. To accommodate the reciprocating movement of the feed wheel in the manner above described the transversely reciprocating Ystud 18 loosely fits in the holein the reciprocat- I ing slide 16cso that the latter may be moved up and down the stud, the stud being dis- `posedparallel with the rod 20 and its direcf tion of thel motion. The twolpositions of the feed wheel and the associated casing are 'indicated in Fig. 1 by the solid and dotted lines respectively. Y

Itfis desirable when adjusting the work l on the spindle that the presser-foot andthe feed wheel be simultaneously removed 'orV lifted out of contact with the work in order that the same may be turned-or adjusted to Vany desired position. vAny suitable means may be employed for this purpose but preferablyIhave provided a lever 21 pivoted at k22 to the head of the machineand carryingacam at 23l adapted to be brought into contact with a lever arm 24 pivoted at 25 to the head of themachine. V The end of the lever 24 is adapted to lie under a lug or projection26 secured to the reciprocating rod 20,the latter being the rod upon'whieh the feed wheel mechanism is mounted'. A similar lug 27 is secured vto theV rod 28 which *carries the presser-foot 6, the lug or pro- Y.. v. jection .26 being provided with an additional projection extending into the path of the lug 27 so that the latter will be lifted when the former is lifted by operating the lever 21, the relative positions of these parts being indicated in Fig. 1 in normal and lifted position by the solid lines and dotted lines respectively.

lIhe operation of my feed device is quite simple, the wheel 7 being turned intermittently by means of a ratchet and pawl fed so as to feed the work forward or away from the operator, as is usual in sewing machines. When it is desired to vinsert or remove the work or adjust its position on the spindle the lever 24 may be operated, thereby lifting` the feed wheel and presser-foot out of Contact with the work so that the same may be adjusted.

Various modifications of the specific details of my mechanism may be made without departing from the spirit and scope of the invention.

I claim:

1. In a sewing machine of the type described, the combination of a feed wheel, a movable casingl for supporting said feed wheel, a ratchet wheel in said casing, means coperating with the ratchet whereby the feed wheel is adapted to feed the work.

2. In a sewing machine of the type described, the combination with a support for the work of a feed wheel, a movable casing for` supporting said feed wheel, a ratchet wheel in said casing, reciprocating means cooperating with the ratchet and means to actuate said reciprocating means whereby the feed wheel is adapted to feed the work.

3. In a sewing machine of the type described, the combination with a support for the work, of a revolving feed wheel, a movable casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, reciprocating means in said slot coperating with the ratchet and means to actuate said reciprocating means, whereby the feed wheel is adapted to feed the work.

4. In a sewing machine of the type described, the combination with a tubular support for the work, of a revolving feed wheel, a ratchet feed therefor, a movable casing for supporting said feed wheel and ratchet, said casing being movably mounted whereby said wheel may be lifted from the work and means for operating said ratchet, whereby the feed wheel is adapted to feed the work.

5. In a sewing machine of the type described, the combination with a support for the work, of a revolving feed wheel, a movable casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, a slide block in said slot coperating with the ratchet and means to actnate said slide block whereby the feed wheel is adapted to feed the work.

l 6. In a sewing machine of the type dcscribed, the combination with a tubular snpport for the work, of a toothed feed wheel adapted to contact with the work to feed the saine, a ratchet wheel for intermittently turning said feed wheel, the planes of said feed wheel and ratchet being at an angle to each other, a casing in which said ratchet and feed wheel are revolubly mounted, means for resiliently` depressing said casing with said feed wheel over said tubular support and means for operating said wheel to feed the work, substantially as described.

7. In a sewing machine of the type described., the combination with a tubular sup port for the work, of a toothed feed wheel adapted to contact with the work to feed the same, a ratchet wheel for intermittently turning said 'feed wheel, the planes of said feed wheel and ratchet being at an angle to each other, a casing in which said ratchet and feed wheel are mounted, means for resiliently depressing said casing with said feed wheel over said tubular support and means for operating said wheel to feed the work, substantially as described.

S. In a sewing machine of the type described, the combination with a support for the work, of a revolving feed wheel, a casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, a slide block in said slot having a bolt pawl adapted, to cooperate with said ratchet and means to' actuate said slide block, whereby the feed wheel is adapted to feed the work.

9. In a sewing machine of the type described, the combination with a support for the work, of a revolving feed wheel, a casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, a slide block in said slot having a resiliently actuated bolt pawl adapted to cooperate with said ratchet and means to actuate said slide block7 whereby the feed wheel is adapted to feed the work.

10. In a sewing machine of the type described, the combination with a support for the work, of a revolving feed wheel, a casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, a slide block in said slot having a spring actuated bolt pawl adapted to cooperate with said ratchet and means to actuate said slide block, whereby the feed wheel is adapted to feed the work.

11. In a sewing machine of the type described, the combination with a support for the work, of revolving feed wheel, a casing having a slot, for supporting said feed wheel, a ratchet wheel in said casing, a slide block in said slot having a spring actuated bolt pawl adapted to engage said ratchet and a reciprocating rod to actuate said slide block whereby the feed wheel is adapted to feed the work.

In testimony whereof I have hereunto set my hand.

CLARENCE H. WILKES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

